KBE3D / KBCore / Cesium / EllipseOutlineGeometry

类: EllipseOutlineGeometry

A description of the outline of an ellipse on an ellipsoid.

示例

const ellipse = new Cesium.EllipseOutlineGeometry({
  center : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
  semiMajorAxis : 500000.0,
  semiMinorAxis : 300000.0,
  rotation : Cesium.Math.toRadians(60.0)
});
const geometry = Cesium.EllipseOutlineGeometry.createGeometry(ellipse);

参数

Object with the following properties:

参数

The ellipse's center point in the fixed frame.

参数

The length of the ellipse's semi-major axis in meters.

参数

The length of the ellipse's semi-minor axis in meters.

参数

The ellipsoid the ellipse will be on.

参数

The distance in meters between the ellipse and the ellipsoid surface.

参数

The distance in meters between the ellipse's extruded face and the ellipsoid surface.

参数

The angle from north (counter-clockwise) in radians.

参数

The angular distance between points on the ellipse in radians.

参数

Number of lines to draw between the top and bottom surface of an extruded ellipse.

属性

packedLength

static packedLength: number

The number of elements used to pack the object into an array.

方法

pack()

static pack(value: EllipseOutlineGeometry, array: number[], startingIndex?: number): number[]

Stores the provided instance into the provided array.

参数

value

EllipseOutlineGeometry

The value to pack.

array

number[]

The array to pack into.

startingIndex?

number

The index into the array at which to start packing the elements.

返回

number[]

The array that was packed into

---

unpack()

static unpack(array: number[], startingIndex?: number, result?: EllipseOutlineGeometry): EllipseOutlineGeometry

Retrieves an instance from a packed array.

参数

array

number[]

The packed array.

startingIndex?

number

The starting index of the element to be unpacked.

result?

EllipseOutlineGeometry

The object into which to store the result.

返回

EllipseOutlineGeometry

The modified result parameter or a new EllipseOutlineGeometry instance if one was not provided.

---

createGeometry()

static createGeometry(ellipseGeometry: EllipseOutlineGeometry): Geometry | undefined

Computes the geometric representation of an outline of an ellipse on an ellipsoid, including its vertices, indices, and a bounding sphere.

参数

ellipseGeometry

EllipseOutlineGeometry

A description of the ellipse.

返回

Geometry | undefined

The computed vertices and indices.

构造函数

构造函数

new EllipseOutlineGeometry(options: { center: Cartesian3; semiMajorAxis: number; semiMinorAxis: number; ellipsoid?: Ellipsoid; height?: number; extrudedHeight?: number; rotation?: number; granularity?: number; numberOfVerticalLines?: number; }): EllipseOutlineGeometry

参数

options

center

Cartesian3

semiMajorAxis

number

semiMinorAxis

number

ellipsoid?

Ellipsoid

height?

number

extrudedHeight?

number

rotation?

number

granularity?

number

numberOfVerticalLines?

number

返回

EllipseOutlineGeometry